When the user logs in as an admin, and clicks on the 'edit user'
button under the url path #organization/user-list-admin, the modal
that was displayed didn't contain the user's email address under the
list of information. This commit adds the email input as a readonly
element, which at the very least provides helpful confirmation that
you have the right user.
Fixes part of #11453.
The legacy "Updated Successfully" message shown after saving changes,
is removed, and replaced with our standard "Saving" spinner and
animation.
Fixes: #11177.
This supports guest user in the user-info-form-modal as well as in the
role section of the admin-user-table.
With some fixes by Tim Abbott and Shubham Dhama.